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Exploiting the Tesla Wall Connector from its charge port connector - Part 2: bypassing the anti-downgrade

lowsynacktiv

In a previous article, we presented an attack against the Tesla Wall Connector Gen 3 used during Pwn2Own Automotive 2025. The exploit chain relied on a simple fact: there was no anti-downgrade mechanism. Once we could speak UDS over the charging cable, we could just write an old, vulnerable firmware to the passive slot, reboot, and pop the debug shell.

Tesla then shipped a firmware update that ad

MITRE ATT&CK techniques

Original source: https://www.synacktiv.com/en/publications/exploiting-the-tesla-wall-connector-from-its-charge-port-connector-part-2-bypassing.html